package cn.smbms.Interceptor;

import cn.smbms.pojo.User;
import cn.smbms.tools.Constants;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class UserInteceptor extends HandlerInterceptorAdapter {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
         HttpSession session=request.getSession();
         User user=(User)session.getAttribute(Constants.USER_SESSION);
         if(null==user){
             response.sendRedirect(request.getContextPath()+"/error.jsp");
             return false;
         }
        return true;
    }
}
